Steel pipe socket and method of connecting steel pipe pile and steel pipe column using the same

Abstract

A steel pipe pile and a steel pipe column is connected using a steel pipe socket. The connection method may include preparing the steel pipe socket including a socket supporting portion that covers an upper end surface of the steel pipe pile, and inserting a plurality of socket insertion portions extended downward from the socket supporting portion and having a plurality of socket grooves at a lower end portion thereof and a plurality of fastening members installed on the socket supporting portion. The method may also include inserting the socket grooves of the steel pipe socket into an upper end portion of the steel pipe pile and mounting the steel pipe column on the socket supporting portion. The method may further include fastening the steel pipe column and the steel pipe pile using the plurality of fastening members of the socket supporting portion.

What is claimed is: 
     
       1. A steel pipe comprising:
 a steel pipe pile and a steel pipe column that are not parallel to each other; and 
 a steel pipe socket for connecting the steel pipe pile and the steel pipe column, the steel pipe socket comprising:
 a socket supporting portion covering an upper end surface of the steel pipe pile; 
 a plurality of socket insertion portions extended downward from the socket supporting portion, wherein:
 each of the plurality of socket insertion portions includes a socket groove at a lower end of that socket insertion portion, and each socket groove being elongated in a direction parallel to and aligned with a central axis of the steel pipe column; and 
 the plurality of socket insertion portions connect the socket supporting portion and the steel pipe pile by insertion of the steel pipe pile into the plurality of socket grooves; and 
 
 a plurality of fastening members connecting the steel pipe column to the socket supporting portion, wherein the plurality of fastening members are installed on the socket supporting portion. 
 
 
     
     
       2. The steel pipe of  claim 1 , wherein the steel pipe socket further comprises:
 a horizontality maintaining member inserted into a gap between the steel pipe pile and a bottom of at least one of the socket grooves to maintain horizontality of the socket supporting portion. 
 
     
     
       3. The steel pipe of  claim 2 , wherein:
 the horizontality maintaining member has a wedge shape. 
 
     
     
       4. The steel pipe of  claim 1 , wherein the steel pipe socket further comprises:
 a reinforcing member installed on a lower surface of the socket supporting portion to reinforce strength of the socket supporting portion. 
 
     
     
       5. The steel pipe of  claim 1 , wherein the steel pipe socket further comprises:
 a socket connecting portion including a column supporting portion installed on a lower end surface of the steel pipe column; and 
 a plurality of reinforcing ribs in contact with the column supporting portion and a side portion of the steel pipe column. 
 
     
     
       6. The steel pipe of  claim 5 , wherein:
 the column supporting portion is in contact with an upper surface of the socket supporting portion. 
 
     
     
       7. The steel pipe of  claim 5 , wherein:
 the plurality of fastening members include bolts and nuts that are disposed along an outer peripheral portion of the socket supporting portion; and 
 the plurality of fastening members are inserted into fastening holes of the column supporting portion. 
 
     
     
       8. The steel pipe of  claim 1 , wherein:
 a diameter of the socket supporting portion is greater than a diameter of the steel pipe pile. 
 
     
     
       9. A method of connecting a steel pipe pile and a steel pipe column using a steel pipe socket, such that the steel pipe pile and the steel pipe column are not parallel to each other, the method comprising:
 preparing the steel pipe socket including:
 a socket supporting portion covering an upper end surface of the steel pipe pile; 
 a plurality of socket insertion portions extended downward from the socket supporting portion, wherein each of the plurality of socket insertion portions includes a socket groove at a lower end of that socket insertion portion, each socket groove being elongated in a direction parallel to and aligned with a central axis of the steel pipe column; and 
 a plurality of fastening members which are installed on the socket supporting portion; 
 
 inserting an upper end portion of the steel pipe pile into the socket grooves of the steel pipe socket; 
 mounting the steel pipe column on the socket supporting portion; and 
 connecting the steel pipe column and the steel pipe pile by fastening the plurality of fastening members of the socket supporting portion. 
 
     
     
       10. The method of  claim 9 , further comprising:
 maintaining horizontality of the socket supporting portion by inserting a horizontality maintaining member into a gap between the steel pipe pile and a bottom of at least one of the socket grooves. 
 
     
     
       11. The method of  claim 9 , further comprising:
 fixing the steel pipe socket to the steel pipe pile by welding the steel pipe pile and the socket grooves. 
 
     
     
       12. The method of  claim 9 , further comprising:
 installing a socket connecting portion on the steel pipe column to connect the steel pipe column with the steel pipe socket. 
 
     
     
       13. The method of  claim 12 , wherein installing the socket connecting portion includes:
 installing a column supporting portion on a lower end surface of the steel pipe column; and 
 installing a plurality of reinforcing ribs in contact with the column supporting portion and a side portion of the steel pipe column. 
 
     
     
       14. The method of  claim 13 , further comprising:
 inserting the fastening members into fastening holes of the column supporting portion.